DK-LOK DQBA-M-4N-S DQ Series Quick Connectors User Guide
- June 13, 2024
- DK-LOK
Table of Contents
DK-LOK DQBA-M-4N-S DQ Series Quick Connectors User Guide
Tools Requirement
- No tools required to couple and uncouple.
- Bi-directional flow design.
- Versatile options of both-end shutoff (DV), single-end shutoff (SV), and both end open (DF Series).
- DQ Series Quick Connector
- DQM Series Miniature Quick Connector
- DF Series Full Flow Quick Connector
Features
- Bi-directional flow design.
- Simple to operate.
- SS316 construction with standard FKM O-ring.
- Brass construction with standard NBR O-ring.
- No tools required to couple and uncouple.
- Compact and light-weight design.
Operation
- Coupling
- Align the stem with the body in the identical Series.
- Push the stem into the body until it clicks.
- Uncoupling
- Pull the body sleeve toward stem.
- Remove stem from body.
- Do not couple or uncouple at pressures exceeding 250 psig (17.2 bar).
SV: Single valve coupled
DV: Double valve coupled
Materials of Construction
| Component | Material |
|---|---|
| SS316 Mat | **erial |
Brass
Body, Haousing Body valve
Body insert
L ocking dogs| ASSTSM31A62/76Xylan™-coated| JICS3H6302450SS316 powered
Locking dogs| Xylan™-coated SS316 powered
Stem
Stem sleeve
O-rings| ASSTSM31A627/ 6 FKM| JICS3H6302450 NBR
Springs| SS302/AST| M A313
Lubricants| Silicon and TFE based
Wetted parts indicated in blue**.
Pressure-Temperature Ratings
DQStem andBody| FK M S S O 3 – 1 r
6 i n g s| NB R B r O a –
s r s i ng s
---|---|---
DQA| DQB| DQC| DQA| DQB| DQC
psi (bar) @ °F (°C)
Coupled Uncoupled| 3@00700(2(2016))25| 1@50700(1(2013))0 (17.2) @ 400 (204|
7@5070(5(12.16))| 2@00700(1(2317))| 1@00700(6(281.9))250 (17.2) @ 250 (121|
5@0070(3(42.14))
250 (17.2)| @ 70 (21)
Uncoupled| 250 (17.2) @ 70 (21)
When coupling and uncoupling| 250 (17.2) @ 70 (21)
Spillage and Air Inclusion
- Spillage is the volume of system fluid that escapes while a quick connector is uncoupled.
- Air inclusion is the volume of air trapped that comes in while a quick connector is coupled.
Ordering Information and Dimensions Stems
DV : Stem has a valve
SV : Stem has no valve
Series| End Connection| Basic Ordering Number| Cv| L mm
(in.)| H h ex. in.
---|---|---|---|---|---
SV DQSA-D-2T-| DV DQVSA-D-2T-| SV 0.08| DV 0.08| F
F l u o l w l 0.08| SV 58.9 (2.32)| DV
70.4 (2.77)
DQA| 1/8 in. DK-Lok1/4 in. DK-Lok| DQSA-D-4T-| DQVSA-D-4T-| 0.3| 0.2| 0.4|
59.9 (2.36)| 61.5 (2.42)| 5/85/8
6 mm DK-Lok| DQSA-D-6M-| DQVSA-D-6M-| 0.3| 0.2| 0.4| 59.9 (2.36)| 61.5 (2.42)|
5/8
1/8 in. Male NPT| DQSA-M-2N-| DQVSA-M-2N-| 0.3| 0.2| 0.4| 52.6 (2.07)| 54.1
(2.13)| 5/8
1/4 in. Male NPT| DQSA-M-4N-| DQVSA-M-4N-| 0.3| 0.2| 0.4| 56.4 (2.22)| 57.9
(2.28)| 5/8
1/8 in. Female NPT| DQSA-F-2N-| DQVSA-F-2N-| 0.3| 0.2| 0.4| 51.1 (2.01)| 52.6
(2.07)| 5/8
1/4 in. Female NPT| DQSA-F-4N-| DQVSA-F-4N-| 0.3| 0.2| 0.4| 57.4 (2.26)| 58.9
(2.32)| 3/4
3/8 in. DK-Lok| DQSB-D-6T-| DQVSB-D-6T-| 1.0| 0.5| 1.5| 64.0 (2.52)| 67.1
(2.64)| 3/4
DQB| 10 mm DK-Lok| DQSB-D-10M-| DQVSB-D-10M-| 1.0| 0.5| 1.5| 67.3 (2.65)| 70.4
(2.77)| 3/4
1/4 in. Male NPT| DQSB-M-4N-| DQVSB-M-4N-| 0.9| 0.5| 1.5| 58.9 (2.32)| 61.9
(2.44)| 3/4
3/8 in. Male NPT| DQSB-M-6N-| DQVSB-M-6N-| 0.8| 0.5| 1.6| 59.7 (2.35)| 62.7
(2.47)| 3/4
1/4 in. Female NPT| DQSB-F-4N-| DQVSB-F-4N-| 0.9| 0.5| 1.5| 59.7 (2.35)| 62.7
(2.47)| 3/4
3/8 in. Female NPT| DQSB-F-6N-| DQVSB-F-6N-| 0.8| 0.5| 1.6| 59.7 (2.35)| 62.7
(2.47)| 7/8
1/2 in. DK-Lok| DQSC-D-8T-| DQVSC-D-8T-| 2.4| 1.5| 3.3| 75.2 (2.96)| 80.3
(3.16)| 15/16
DQC| 12 mm DK-Lok| DQSC-D-12M-| DQVSC-D-12M-| 2.4| 1.5| 3.3| 75.2 (2.96)| 60.3
(3.16)| 15/16
1/2 in. Male NPT| DQSC-M-8N-| DQVSC-M-8N-| 2.0| 1.3| 3.1| 72.1 (2.84)| 77.2
(3.04)| 15/16
1/2 in. Female NPT| DQSC-F-8N-| DQVSC-F-8N-| 2.0| 1.3| 3.1| 71.6 (2.82)| 76.7
(3.02)| 1 1/16
| | | | | | | |
Stems-Bulkhead
DV : Stem has a valve
SV : Stem has no valve
Series| End Connection| Basic Ordering Number| M T
h P i c a k n n e e l **s
i s n . ) ax. mm (| M i H o P
l a e n D e i l a i . n. )
n. mm (| L mm (in.)| H e x h . i n .
---|---|---|---|---|---|---
SV| DV| SV| DV**
DQA| 1/4 in. DK-Lok| DQSA-BH-D-4T-| DQVSA-BH-D-4T-| 6.4 (0.25)| 11.9 (15/32)|
69.6 (2.74)| 71.1 (2.80)| 5/8
6 mm DK-Lok| DQSA-BH-D-6M-| DQVSA-BH-D-6M-| 6.4 (0.25)| 11.5 (29.64)| 69.6
(2.74)| 71.1 (2.80)| 16 mm
DQB| 3/8 in. DK-Lok| DQSB-BH-D-6T-| DQVSB-BH-D-6T-| 6.9 (0.27)| 15.1 (19/32)|
74.2 (2.92)| 76.0 (3.07)| 3/4
10 mm DK-Lok| DQSB-BH-D-10M-| DQVSB-BH-D-10M-| 6.9 (0.27)| 16.7 (21/32)| 77.7
(3.06)| 78.7 (3.10)| 22 mm
DQC| 1/2 in. DK-Lok| DQSC-BH-D-8T-| DQVSC-BH-D-8T-| 6.6 (0.26)| 19.8 (25/32)|
87.1 (3.43)| 92.2 (3.63)| 15/16
12 mm DK-Lok| DQSC-BH-D-12M-| DQVSC-BH-D-12M-| 6.6 (0.26)| 19.4 (49/64)| 87.1
(3.43)| 92.2 (3.63)| 24 mm
Insertion depth and Overall length
To have an overall length in coupled position, subtract the insertion depth
from the combination length of the stem and the body.
Insertion Depth
S e D r Q ies
| Depth mm (in.)
---|---
SV Depth|
mm (in.) DV
DQA
| 27.7 (1.09)| 29.2 (1.15)
DQB| 30.0 (1.18)|
33.0 (1.30)
DQC
| 37.6 (1.48)|
42.7 (1.68)
Bodies
Series| End Connection| Basic Ordering Number| L mm (in.)|
D mm (in.)
---|---|---|---|---
Series DQA| 1/8 in. DK-Lok| DQBA-D-2T-| 57.4 (2.26)| 23.1 (0.91)
| | |
6 mm DK-Lok| DQBA-D-6M-| 58.4 (2.30)| 23.1 (0.91)
1/8 in. Male NPT| DQBA-M-2N-| 51.1 (2.01)| 23.1 (0.91)
1/4 in. Male NPT| DQBA-M-4N-| 54.9 (2.16)| 23.1 (0.91)
1/4 in. Male ISO| DQBA-M-4R-| 54.9 (2.16)| 23.1 (0.91)
1/8 in. Female NPT| DQBA-F-2N-| 54.9 (2.16)| 23.1 (0.91)
1/4 in. Female NPT| DQBA-F-4N-| 61.5 (2.42)| 23.1 (0.91)
1/4 in. Female ISO| DQBA-F-4R-| 61.5 (2.42)| 23.1 (0.91)
DQB| 3/8 in. DK-Lok| DQBB-D-6T-| 65.5 (2.58)| 26.2 (1.03)
| | |
1/4 in. Male NPT| DQBB-M-4N-| 60.5 (2.38)| 26.2 (1.03)
3/8 in. Male NPT| DQBB-M-6N-| 60.5 (2.38)| 26.2 (1.03)
3/8 in. Male ISO| DQBB-M-6R-| 60.5 (2.38)| 26.2 (1.03)
1/4 in. Female NPT| DQBB-F-4N-| 64.5 (2.54)| 26.2 (1.03)
3/8 in. Female NPT| DQBB-F-6N-| 65.3 (2.57)| 26.2 (1.03)
3/8 in. Female ISO| DQBB-F-6R-| 65.3 (2.57)| 26.2 (1.03)
| | |
DQC| 1/2 in. DK-Lok| DQBC-D-8T-| 78.5 (3.09)| 30.7 (1.21)
| | |
1/2 in. Male NPT| DQBC-M-8N-| 75.4 (2.97)| 30.7 (1.21)
1/2 in. Male ISO| DQBC-M-8R-| 75.4 (2.97)| 30.7 (1.21)
1/2 in. Female NPT| DQBC-F-8N-| 81.8 (3.22)| 30.7 (1.21)
1/2 in. Female ISO| DQBC-F-8R-| 81.8 (3.22)| 30.7 (1.21)
| | |
Bodies-Bulkhead
Series| C o n E n n e c d t
io n| B a s N i c u O m r
b d e r rin g| P ane l M T a
h x i c . **k nes s| P ane l
M H i n o . l e D i a .|
L| D
---|---|---|---|---|---|---
6.4 (0.25) 11.9 ( mm ****(in.) ** 67.8
(2.67) 23.1 (0.91)15/32)
DQA| 1/4 in. DK-Lok6 mm DK-Lok| DQBA-BH-D-4T-DQBA-BH-D-6M-| 6.4 (0.25)| 11.9
(15/32)| 67.8 (2.67)| 23.1 (0.91)
3/8 in. DK-Lok| DQBB-BH-D-6T-| 6.9 (0.27)| 15.1 (19/32)| 75.7 (2.98)| 26.2
(1.03)
DQB| 10 mm DK-Lok| DQBB-BH-D-10M-| 6.9 (0.27)| 16.7 (21/32)| 75.9 (2.99)| 26.2
(1.03)
1/2 in. DK-Lok| DQBC-BH-D-8T-| 6.6 (0.26)| 19.8 (25/32)| 90.4 (3.56)| 30.7
(1.21)
DQC| 12 mm DK-Lok| DQBC-BH-D-12M-| 6.6 (0.26)| 19.4 (49/64)| 90.4 (3.56)| 30.7
(1.21)
| | | | |
How to Order
Add “SA” for SS316 or “BA” for Brass as a suffix to the Basic Ordering
Number.
Examples : DQSA-D-4T-SA, DQBA-D-4T-BA.
O-ring Designators
Nil : Standard FKM for SS316 quick connector
Nil : Standard NBR for Brass quick connector
FKM : VT
NBR : BN
FFKM : KZ
EPDM : EP| How to Order an Optional O-ring Connector
Insert O-ring designator to the basic ordering number.
Examples: DQVSA-D-2T-KZ-SA, DQVSA-D-2T-EP-BA
---|---
How to Order a Full Flow DQ Series Connector
A full flow DQ series consists of a SV stem and a full flow body.
To order a full flow body, select an applicable Basic Ordering Number, add
“FF” and a material designator.
Examples : DQBA-D-4T-FF-SA, DQBB-D-6T-FF-SA.
Options
Pressure Retaining Protectors
DQ Protectors are not pressure retaining devices.
To order the pressure retaining protector, add “P” as a suffix to the
protector ordering number.
Examples : DQSA-CPP-, DQBA-PGP-.
How to order FACTORY ASSEMBLED PROTECTOR on to DQ stem and body.
Select an applicable STEM or BODY ordering number, and insert “CP” or“PG”
in the ordering number.
Examples : DQVSC-D-12M-CP-SA, DQBC-D-12M-PG-SA.
DQ Protectors
Body and Stem Protector are available to protect body and stem from damage
and contamination while they are uncoupled.
Field Assembly Protector Ordering Number
Stem Protector
DQSA-CP-| Body Protector
DQBA-PG-
---|---
DQSB-CP-| DQBB-PG-
DQSC-CP-| DQBC-PG-
To complete ordering number, add a material designator “SA” for SS316, “BA”
for Brass as a suffix to the protector ordering number.
Examples : DQSA-CP-SA, DQBA-PG-BA
Note : Stem Protector is applicable to both SV stem and DV stem.
Materials of Construction
Protector: Stainless steel or Brass
Lanyard: Stainless steel
Lanyard clamp: Stainless steel
DQ color coded “Keyed” quick connectors
Features
- DQ Keyed quick connectors prevent intermixing of different keys mechanically as well as allow visual identification by color coding.
- Eight (8) different keys on each DQ series are available with its own Key number.
- DQ keys are useful to control multi-fluid or multi-pressure systems.
Operation
- Select stem and body keyed in the same DQ series.
- Coupling : Align stem with body. Push stem into body until it clicks.
- Uncoupling : Pull body sleeve toward stem. Remove stem.
DQ Key Ordering Numbers and Sleeve Outside Diameter
Key
Number|
Key
Color
| DQA| DQB| DQC
---|---|---|---|---
Body Sleeve DQ| A **Stem Sleeve| Body Sleeve
D| QB ****Stem Sleeve| Body Sleeve D**|
QC **Stem Sleeve**
mm| inch| mm| inch| mm| inch| mm|
inch| mm| inch| mm| inch
K1| Black| 24.5| 0.96| 20.9| 0.82| 28.7| 1.13| 25.1| 0.99| 32.0| 1.26| 27.9|
1.10
K2| Orange| 25.0| 0.99| 21.6| 0.85| 29.5| 1.16| 25.8| 1.02| 32.8| 1.29| 28.9|
1.14
K3| Green| 26.0| 1.02| 22.4| 0.88| 30.2| 1.19| 26.6| 1.05| 33.6| 1.32| 29.7|
1.17
K4| Yellow| 26.8| 1.05| 23.2| 0.91| 31.0| 1.22| 27.4| 1.08| 34.3| 1.35| 30.4|
1.20
K5| Blue| 27.5| 1.08| 23.9| 0.94| 31.5| 1.24| 28.1| 1.11| 35.1| 1.38| 31.2|
1.23
K6| White| 28.3| 1.11| 24.7| 0.97| 32.5| 1.28| 28.9| 1.14| 35.8| 1.41| 32.0|
1.26
K7| Purple| 29.1| 1.14| 25.4| 1.00| 33.3| 1.31| 29.7| 1.17| 36.6| 1.44| 32.7|
1.29
K8| Brown| 29.8| 1.17| 26.2| 1.03| 34.0| 1.34| 30.4| 1.20| 37.4| 1.47| 33.5|
1.32
BoSdtaynSdleaerdveDDQia.
| 23.1| 0.91| | 26.2| 1.03| | 30.7| 1.21|
How to Order
Add the Key number as a suffix to the DQ series Ordering Number.
Examples : DQSB-D-6T-K1-SA.
Ph : 1.888.610.7664 www.calcert.com
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